Disk harrow.



C. S. SHARP.

DISK HARROW.

APPLlcATloN msu Jun: 1o. 1912.

Patented Jan. 23,1917.

5 SHEETS-SHEET I.

WITNESS/ast- C. S. SHARP.

DISK HARROW.

APPLxcATmN FILED JUNE 1o. 1912.

Patented Jan. 23, 1917.

5 SHEETS-SHEET 2.

[N VEN TOR.

WITNESSES:

C. S. SHARP.

DISK HARROW.

APPLICATION man JUNE so. 1912.

Patented Jan. 23, 1917.

5 SHEETS-SHEET 3.

C. S. SHARP.

DISK HARROW.

APPLICATION FILED IUNE I0. 1912.

l ,21 3 ,28 1 Patented Jan. 23, 1917.

5 SHEETS-SHEET 5.

WITNESSES: )f INVENTOR.

if? TTORNEY.

UNITED STATES PATENT OFFICE.

CHARLES S. SHARP, OF AUBURN, NEW YORK, ASSIGNOR TO INTERNATIONAL HAR-VESTER COMPANY OF NEW JERSEY, A CORPORATION 0F NEW JERSEY.1

DISK HARROW.

Specification of Letters Patent.

Patented Jan. 23, 1917.

Application led June 10, 1912. Serial No. 702,645.

To all whom it may concern Be it known that I, CHARLES S. SHARP, acitizen of the United States, residing at Auburn, in the countyv ofCayuga and State of New York, have invented certain new and usefulImprovements in Disk Harrows, of which the following is a specification.

.My invention relates to disk harrows, and in particular to that typewherein two complete harrows, having two disk gangs each, are operatedin tandem relation, and consists in providing improved draft connectionsand means whereby the angle of the gangs relative to the line of draftof the machine may be simultaneously regulated; the object of myinvention being to provide an implement of the character described thatwill be extremely flexible in operation, the mechanism permitting shortturning movements at the-end of the field and a proper trailing effectand at all times under complete control of the operator. I attain theseobjects by means of the mechanism illustrated by the accompanyingdrawings, in which- Figure l is a top plan View of two disk harrowsarranged in tandem relation and having my invention forming a partthereof Fig. 2"is a detached detail designed to illustrate the operationand construction of part of the draft mechanism of the front harrow andthe manner of changing the angle of the gangs relative to vthe line ofdraft; Fig. 3 is a sectional end elevation of Fig. 2; Fig. 4 is adetached detail of Fig. 2

illustrating the operation of one of the swinging draft links connectingthe draft frame with the disk gang frames; Fig. 5 is a side elevation,partly in section, of Fig. 1, showing also vthe rear portion of atractor to which the tandem harrowis flexibly connected and from whichthe gangs thereof may be adjusted; Fig. 6 is a detached sectional sideelevation of Fig. 1 and designed to illustrate the operation of themechanism for regulating the operative angle of the disk gangs relativeto the line of draft; Fig. 7 is a rear elevation of the forward harrowas shown in Fig. l; Fig. 8 is a rear elevation of the rear harrow asshown in Fig. 1; Fig. S) is a front elevation, partly in section, of oneend of F ig. V8 and designed to illustrate the construction of the endbearing for the gang axles; Fig. 10 is an end elevation of Figf9; Fig.11 is a detail showing the construction of the vertical pivotalconnection between the gang frame and the draft frame members of therear harrow; and Fig. 12 is a vertical cross section of Fig. 11.

The same reference characters designate like parts throughout theseveral views.

The draft frame of the lfront harrow includes a substantially U-shapedmember l, having the rear ends 2 thereof arranged parallel with the lineof draft and secured to a transverse draft frame member 3. and the headportion 4 thereof secured to longitudinally arranged frame members 5spaced apart in parallel relation and having the rear ends thereofsecured to the transverse frame member 3, and extending in rearthereofare curved laterally in opposite directions and have the endsthereof connected by means of a yoke member 6.

7 represents a yoke secured to the front ends of members 5 and having avertically arranged bearing sleeve 8, in which is journaled the verticalstem 9 of a forecarriage l0, including an axle 11 connected with thelower end of the stem and having wheels 12 journaled upon opposite endsthereof, a vertically arranged draft member 13 carried by a. bracketmember 1-1 secured to the stem 9 ,and having the lower end thereofconnected with a bracket member v15 carried by the axle. v

The gang frames include transversely arranged main members 16,preferably of channel form, and having the upper ends of depending bars17 secured thereto, the lower-- ends of the barsv being securedy tobearing boxes 18, .in which are liournaled the gang axles 19 carryingthe disks 20, spaced -apart by means of spools 21 in a well-known way.the two gangs being operative as a bumper or`out-throw harrow. There arethree bearing boxes for the axles of each gang, one at the inner endsand two spaced apart near the opposite ends of the axle. the two outsidebearings being connected to the rear ends of the side members 22 ofU-shaped draft members 23, the front portions of which are formedconcentric with the vertiycal axes of rearwardly extendingl links 24manner permitting an angular adjustment of the disk gangs relativev tothe line of dra-ft.

-that ar'e 'journaled upon dependingstem portions 281 forming partof-bracket members 29 that arersecured to the draft frame members 2, theconstruction permitting an easy ladjustment of the gangs, and 30represents downwardly extending bracket members that'are also secured toframe members 2 and engage with the front sides of the head portion ofthe U-shaped draft members in a manner to retain them in properengagement withthe flanged wheels.

3l represents a block slidably received between the two members 5 of thedraft frame, having depending ear members 32 that carry a transverselyarranged pin 33, to which are connected rearwardly extending rods 34that are provided with upturned portions at the rear ends thereofwhereby said rods are connected to the inner ends of the gang frames bymeans of clips 85 and a forwardly extending rod 36y having the front endthereof connected with the lower end of a verti- Acally arranged evener37 that is pivotally connected intermediate the ends thereof with theframe members 5.

38 represents a shaft having the front end thereof journaled in a.braeket'member 39 secured to the members 5 and provided with a threadedportion in rear of the bracket whereby it is operatively connected withthe block 3l, the shaft being held against longitudinal movement bymeans of a collar 40 secured thereto and engaging with the rear side ofbracket39 and a universal coupling member 41 secured to the front end ofthe shaft and engaging with the opposite side of the bracket member, and42 represents a forwardly and upwardly inclined shaft having a couplingmember 43 at the lower end thereof whereby the shaft is operativelyconnected with shaft 38, the body of the shaft being journaled in aswinging bearing block 44 carried by a bracket member 45 mounted uponthe upper end of the stem 9 of the forecarriage, and 46 represents ahand wheel secured to the upper end of the shaft whereby said shaft maybe rotated in a manner to control the angle of the disk gangs relativeto the line of draft.

The rear harrow includes a draft frame comprising a U-shaped member 47having parallel rearwardly extending members 48 secured to opposite endsof a transverse member 49, and supplemental draft members 50 having the4rear ends thereof secured to opposite ends of the transverse member andconverging inwardly and forwardly are secured to the draft frame memberl47, and extending in a Plane above the draft frame of the forward barrowhave the `front ends thereof secured to a draft head 5l that ispivotally-mounted upon the stem 9 of the forecarriage. I Y

The disk gangs of the rearharrow include main framemembers 52 that arepivotally connected withl opposite ends of the draft frame member 49 bymeans of couplings 53 that include base members 54 -that are 'use curedto the frame members 52 and provided with vertically arranged stems 55that are journaled in bearing blocks 56 secured to the draft framemember 49 and 57 represents a king bolt securing the parts in operativerelation.

58 represents depending gang free members having the upper ends thereofsecured to the/frame member 52, and their lower ward, it is necessary toprovide bearings l62 l to resist an end thrust of the axles in an0pposite direction.

The bearings include a cup-shaped block secured to the lower ends ofdepending bars l 63 that have the upper ends thereof secured to oppositesides of the outside endsk of the gang frame members 52. The ends of thegang axles are journaled inthe blocks, and 64 represents washersinterposed between the ends of the axle and an adjusting screw 65whereby the associated parts of the bear` ing may be properly adjusted.

(S6 represents U-shaped draft members like in form to that of draftmembers 23 and connecting the rear disk gangs with the members 48 in alike manner.

67 represents longitudinally arranged bars secured to the draft framein. parallel relation and arranged as guides for blocks 68 that areslidably received between each pair of bars andy connected with theupper end of evener 37 carried by the draft frame of the forward harrowbymeans of rods 69, whereby the blocks are adjusted simultaneously withthe block 3l and in an opposite direction, and 70 represents barsconbars 67 in a manner preventing an upward movement of the inner endsof the gang frames.

The harrows are designed for use in connection with a traction engineand the hand wheel 46 is within convenient reach of the Y gang members.

operator of the engine and may be manipulated in a manner to control theWorking angleof the disk gangs as desired, and the rea-r liarrow may beeasily detached from the orecarriage and the front harroW operatedsingly.

What I claim as my invention, and desire to secure by Letters Patent,is:

1. In a tractor drawn tandem disk harroW, front and rear units flexiblyconnected, each unit having a plurality of pivoted gang members,andunitary means positioned to be reached from a tractor for angularlyadjusting all of said gangs.

2. In a tractor drawn tandem disk harroiv, front and rear framesconcentrically pivoted, each frame carrying a plurality of angularlyadjustable disk gangs, and means positioned to be reached from a tractorfor controlling the adjustment of said gangs.

3. In a tandem disk liarrow, flexibly associated front and rear frameslaterally pivotally connected and each carrying a plurality of angularlyadjustable disk gangs,`and unitary means located on the forward end ofthe harrow for simultaneously adjusting the angular positions of saidgangs.

4. In a tandem disk harrow, front and rear frames laterally pivotallyconnected and -each carrying a plurality of pivoted gang members, andunitary means for angularly adjusting all of said gangs.

5. In a tandem disk harrow, front and rear units comprising each a pairof pivoted gang members the rear unit being capable of a lateralmovement relative to the front unit and the gang members being adaptedto be placed in cruciform arrangement, and a single member for adjustingthe angular positions of all of said gang members.

6. In a tandem disk harrow, front and rear frames flexibly connected toeach other, each carrying a plurality of pivoted gang members adapted tobe placed in cruciform arrangement` and unitary means for adjusting theangular positions of all of said gang members.

7. In a tandem disk harrow, front and rear frames each carrying aplurality of angulaily adjustable disk gangs, fore and aft slidableblocks carried on each of the frames, draft links between the blocks andeach of the gang members, and means for moving said blocks to adjust thegangmembers angularly.

8. In a tandem disk liarrow, front and rear frames each carrying aplurality of pivoted gang members, fore and aft slidable blocks carriedon each of the frames, draft links between the blocks and gang members,and unitary 'means for moving said blocks to adj ustthe angles of all ofthe 9. In a tandem disk harrow, front and rear frames flexibly connectedand each carrying a plurality of angulai'ly adjustable disk gangs, foreand aft sliding blocks on each of the frames, draft links between theblocks anddisk gangs, and unitary means for moving said blocks to adjustthe gangs to cruciform arrangement.

10. In aV tandem disk hai-row, front and rear frames each carrying aplurality of angularly adjustable gang members and pivoted at theirforward ends to a common pivotal member.

11. In a tandem disk harrow, front and rear frames each carrying aplurality of angularly adjustable gang members, and a forecarriage toWhiclithe front ends of both of said frames are pivoted.

12. In a tillageimplement, a frame, a pair of inthrow disk gangs pivotedthereto, means for moving said gangs about their pivots, andanti-tilting devices for the inner ends of the gangs comprising fore andaft frame bars, and a yoke member carried by eacli disk gang and slidingover said frame bars.

13. In a tillage implement, a frame, a

pair of inthrow disk gangs pivoted thereto, fore and aft extending tramebars adjacent to the inner ends of each of the disk gangs, a slidingblock -on each of said frame bars having a. link connection with theadjacent disk gang for changing the angular position of the latter, andanti-tilting devices for each ofthe disk gangs comprising a verticallyarrangedyoke member secured to the gang and passing over the adjacentframe' 100 bars. I n

l-l. In a tillage implement, a plurality of v liarroiv frames onedisposed in front of the other and flexibly connectedy together. harrowgangspivoted thereto and normally disposed in parallel series, aplurality of gangs being in each-series, links pivotally connected tothe adjacent ends of -each of said gang members, a member von each frame`to which certain of said links are connected,"

said gang members and engaging the roller connection on each of saidframe members.

16. In a tillage implement, a plurality of horizontally disposedflexibly connected frames, a plurality of tilling gangs movable in ahorizontal plane with respect thereto,

roller connections on each of said frames, an arcuate member attached toeach of said gang members engaging a roller connection on one of saidframe members, and means `f0r actuating each of said gang members to 130connected 115 move its arcuate member with respect to said roller.

17. In a tillage implement, a plurality of horizontally disposedflexibly connected frames, a plurality1 of tilling gangs movable in ahorizontal plane with respect thereto, draft connections on each of saidframes, an arcuate member attached to each of said gang members engaginga draft connection on each of said frames, and a single means forsimultaneously moving each of said arcuate members with respect to itsdraft connection.

18. In a tillage implement, a plurality of horizontally disposedflexibly connected frames, a plurality of tilling gangs movable in ahorizontal plane with respect thereto, draft connections on each of saidframes, an arcuate member attached to each of said gang members engaginga draft connection -ing spaced rearwardly extending members,

tilling gangs pivoted to said frame at points adjacent the ends of saidframe members and movable about in a horizontal plane, a substantiallyU-shaped draft link attached to each gang member on opposite sides ofits pivot to said frame, and a coperating draft member carried by eachframe member at a point in front of each gang pivot.

20. In a tillage implement, a frame having spaced rearwardly extendingmembers, gang members pivoted adjacent the ends thereof and movable in ahorizontal plane.y a draft connection for each of said gang memberscomprising an arcuate member rigidly attached thereto on opposite sidesof the gang pivot, and a. roller connection engaging said arcuate memberand carried on one of said frame members at a point in front of the gangpivot. y

21. In a tillage implement, a plurality of flexibly connected frameswith their forward ends pivoted at a common point, a tilling gangpivoted on each of said frames and movable with respect to the `line ofdraft, means including a single operating member for adjusting one ofsaid gangs relative to the line of draft. and operative connectionsbetween said adjusting mechanism and the other gang whereby said lattergang may be adjusted upon movement of the same operating member.

QQ. In a tillage implement, a plurality of flexibly connected frameswith their forward ends pivoted at a common point, one disposed in frontof the other, a plurality of tilting gangs pivoted on each of saidframes and movable with respect to the line of draft, means including asingle operating member for adjusting the gangs on one frame relative tothe line of draft and operative connections between said adjustingmechanism and the gangs on the other frame whereby said last mentionedgangs may be adjusted upon movement of the same operating member.

Q3. In a tillage implement, a plurality of flexibly connected frameswith their forward ends pivoted at a common point, one disposed in frontof the other, a plurality of tilling gangs pivoted on each of saidframes and movable with respect to the line of draft, means including asingle operating member for adjusting the gangs on one frame relative tothe line of draft, and operative connections between said adjustingmechanism and the gangs on the other frame whereby said last mentionedgangs may' be adjusted in an opposite direction from the gangs on thefirst mentioned frame upon movement of the same operating member.

24. In a tillage implement, a plurality ofpivotally connected frames, aplurality of tilling gangs pivoted thereto and movable in a horizontalplane, an evener pivoted on one of said frames, link connectionsintermediate one end of said evener and the gangs on one of said frames,link connec tions between the opposite end of said evener and the gangson the other frame, and means for moving said evener about its pivot.

25. In a tillage implement, a plurality of pivotally connected frames, aplurality of tilling gangs pivoted t0 each of said frames and movablewith respect thereto in a horizontal plane, an evener pivoted on one ofsaid frames, operative connections between one end of said evener andthe gangs on one frame and between the opposite end of said evener andthe gangs on the other frame, and means including a single operatingmember for adjusting said evenerl and thereby adjusting said gangs.

26. In a tillage implement, a plurality of pivotally connected framesdisposed one in front of the other, a plurality of tilling gangs pivotedon each of said frames and movable with respect thereto in a horizontalplane, an evener pivoted on the front frame, operative connectionsbetween the gangs on said front and'rear frames and the opposite ends 0fsaid evener, an operating mem- .ber for said evener protruding beyondthe line of draft the gangs on the front frame, and operativeconnections between said adjusting means and one end of said evener andbetween the opposite end of said evener 'and the gangs on the rear framefor -adjusting said last mentioned gangs.

28. An implement of the class described having, in combination, twoharrows operative in tandem relation, each harrow including a. draftframe 'having disk gangs connected therewith, the draft frame of therear harrow extending forward in a plane above that of the front harrow,and a forecarriage having the front ends of each of the said draftframes pivotally connected therewith.

29. An implement of the class described having, in combination, twoharrows operaltive in tandem relation, each harrow including a draftframe having disk gangs connected therewith, the draft frame of the rearharrow extending forward in a plane above that of the front harrow, aforecar- .riage including means whereby it may be vconnected with asource of power, and having a vertically arranged stem, the front endsof each of said draft framesbeing journaled upon said stem. 30, Animplement of the class described having, in combination, two harrowsoperative in tandem relation, each harrow including a draft frame, diskgang frames having a vertical pivotal connection with said draft frames,U-shaped draft members having the side members thereof connected withthe gang frames. upon opposite sides of the vertical axes thereof andhaving the head portions of said members formed concentric with thevertical axes of the gang frames and connected'with the draft frame in amanner permitting an angular movement of the gang frames about theirvertical axes, and means for adjusting said gang frames angularly.

31. An implement of the class described having, in combination, twoharrows operative in tandem relation, each harrow including a draftframe, disk gang frames having a vertical pivotal connection with saiddraft frames, U-shaped draft members having the side membersthereofconnected with the gang frames upon opposite sides of the vertical axesthereof, and having the head portions of said members formed concentricwith the vertical axes of the gang frames, anged wheels carried by thedraft frame of the harrow and engaging with the concentric portion ofsaid U-shaped draft members, and means for adjusting said gang framesangularly.

32. An implement of the class described having, in combination, twoharrows operative in tandem relation, each harrow including a draftframe, disk gang frames having a vertical pivotal connectionwith saiddraft frames in a manner permitting said gang frames to be adjustedangularly relative to the line of draft, means for adjusting said gangframes angularly, said means including a block slidably mounted upon oneof said draft frames, a threaded shaft engaging with said block andsecured against longitudinal movement, means for rotating said shaft,and operative connections between said sliding block and the inner endsof said gang frames.

33. An implement ofthe class described havlng, in combination, twoharrows operative in tandem relation, each harrow includmg a draftframe, disk gang frames having a vertical pivotal connection with saiddraft frames in a manner permitting said gang frames'to be adjustedangularly relative to the line of draft, means for adjusting said gangframes angularly, said means including bars arranged in a fore and aftdirection, in parallel relation, and secured to the harrow draft frame,a block slidablymounted between said bars, a threaded shaft engagingwith said block and secured againstlongitudinal movement, a forwardlyand upwardly inclined shaft having the rear end thereof connected withthe front end of said threaded shaft by means of a universal coupling, ahand wheelsecured to the opposite end of said yinclined shaft, andoperative connections between said sliding block and the inner ends ofsaid gang frames.

34. An implement of the class described having, in combination, twoharrows operative in tandem relation, each harrowincluding a draftframe, disk gang frames having a vertical pivotal connection with saiddraft frames in a manner permitting said gang frames to be adjustedangularly relative to the line of draft, means for adjusting said gangframes angularly, said means including bars arranged in a fore and aftdirection,

in parallel relation, and secured to the draft frame, a block slidablyvmounted between said bars, a threaded shaft engaging ,with said block,means for rotating said shaft, an evener pivotally mounted upon thedraft frame, links connecting said sliding block with the inner ends ofthe gang frames of the front harrow, a link connection between saidblock and the one end of said evener, and operative connections betweenthe opposite end of said evener and the inner ends of the gang frames ofthe rear harrow whereby the gang frames may be simultaneously adjustedin opposite directions relative to the line of draft,

35. An implement of the class described having, in combination, twoharrows operative in tandem relatlon, each harrow lncluding adraftframe, disk gang frames having a vertical pivotal connection withsaid draft frames in a manner permitting an angular adjustment thereofrelative to the line of draft, means for adjusting said gang framesangularly, said means including bars arranged in a fore and aftdirection, in parallel relation, and having one pair of said barssecured to the draft frame of the front harrow, and two pairs of bars tothe draft frame of the rear harrow, blocks slidably Lmounted betweeneach pair of bars, a threaded shaft engaging with the block carried bythe draft frame of the front harrow, means for rotating said shaft, avertically arranged evener pivotally mounted upon the draft frame infront of said sliding block and having a link connection between thelower end thereof and said block, links connecting the inner ends of thegang frames of the front harrow with said block, link connectionsbeoperatively connected to said gang members. 30

CHARLES S. SHARP. Witnesses :A

K. T. ELLIOTT, WM. L. HODDER.

